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Finding the Fourth Proportional to 53,397,477.20, 74,926,529.20 and 53,397,477.20

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Solution

The fourth proportional to 53,397,477.20, 74,926,529.20 and 53,397,477.20 is: 74,926,529.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,397,477.20 : 74,926,529.20 = 53,397,477.20 : x
  2. Step 2: Convert to fraction form
    53,397,477.20/74,926,529.20 = 53,397,477.20/x
  3. Step 3: Cross multiply
    53,397,477.20x = 74,926,529.20 × 53,397,477.20
  4. Step 4: Simplify right side
    53,397,477.20x = 4,000,887,634,632,134.50
  5. Step 5: Solve for x
    x = 4,000,887,634,632,134.50/53,397,477.20
  6. Step 6: Final answer
    x = 74,926,529.20

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.