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Finding the Fourth Proportional to 620,952,632.40, 931,431,713.40 and 160,858,117.20

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Solution

The fourth proportional to 620,952,632.40, 931,431,713.40 and 160,858,117.20 is: 241,287,892.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    620,952,632.40 : 931,431,713.40 = 160,858,117.20 : x
  2. Step 2: Convert to fraction form
    620,952,632.40/931,431,713.40 = 160,858,117.20/x
  3. Step 3: Cross multiply
    620,952,632.40x = 931,431,713.40 × 160,858,117.20
  4. Step 4: Simplify right side
    620,952,632.40x = 149,828,351,717,893,984
  5. Step 5: Solve for x
    x = 149,828,351,717,893,984/620,952,632.40
  6. Step 6: Final answer
    x = 241,287,892.02

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.