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Finding the Fourth Proportional to 64,513,672.80, 96,770,509.20 and 38,983,509.60

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Solution

The fourth proportional to 64,513,672.80, 96,770,509.20 and 38,983,509.60 is: 58,475,264.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,513,672.80 : 96,770,509.20 = 38,983,509.60 : x
  2. Step 2: Convert to fraction form
    64,513,672.80/96,770,509.20 = 38,983,509.60/x
  3. Step 3: Cross multiply
    64,513,672.80x = 96,770,509.20 × 38,983,509.60
  4. Step 4: Simplify right side
    64,513,672.80x = 3,772,454,074,395,088.50
  5. Step 5: Solve for x
    x = 3,772,454,074,395,088.50/64,513,672.80
  6. Step 6: Final answer
    x = 58,475,264.40

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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.