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Finding the Fourth Proportional to 64,152,616.40, 96,039,967.80 and 60,415,470.80

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Solution

The fourth proportional to 64,152,616.40, 96,039,967.80 and 60,415,470.80 is: 90,445,256.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,152,616.40 : 96,039,967.80 = 60,415,470.80 : x
  2. Step 2: Convert to fraction form
    64,152,616.40/96,039,967.80 = 60,415,470.80/x
  3. Step 3: Cross multiply
    64,152,616.40x = 96,039,967.80 × 60,415,470.80
  4. Step 4: Simplify right side
    64,152,616.40x = 5,802,299,870,253,840
  5. Step 5: Solve for x
    x = 5,802,299,870,253,840/64,152,616.40
  6. Step 6: Final answer
    x = 90,445,256.89

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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.