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Finding the Fourth Proportional to 56,406,430.40, 84,476,935.20 and 56,406,430.40

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Solution

The fourth proportional to 56,406,430.40, 84,476,935.20 and 56,406,430.40 is: 84,476,935.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,406,430.40 : 84,476,935.20 = 56,406,430.40 : x
  2. Step 2: Convert to fraction form
    56,406,430.40/84,476,935.20 = 56,406,430.40/x
  3. Step 3: Cross multiply
    56,406,430.40x = 84,476,935.20 × 56,406,430.40
  4. Step 4: Simplify right side
    56,406,430.40x = 4,765,042,365,764,110
  5. Step 5: Solve for x
    x = 4,765,042,365,764,110/56,406,430.40
  6. Step 6: Final answer
    x = 84,476,935.20

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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.