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Finding the Fourth Proportional to 67,392,101.80, 101,088,152.70 and 64,746,706.60

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Solution

The fourth proportional to 67,392,101.80, 101,088,152.70 and 64,746,706.60 is: 97,120,059.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,392,101.80 : 101,088,152.70 = 64,746,706.60 : x
  2. Step 2: Convert to fraction form
    67,392,101.80/101,088,152.70 = 64,746,706.60/x
  3. Step 3: Cross multiply
    67,392,101.80x = 101,088,152.70 × 64,746,706.60
  4. Step 4: Simplify right side
    67,392,101.80x = 6,545,124,963,602,898
  5. Step 5: Solve for x
    x = 6,545,124,963,602,898/67,392,101.80
  6. Step 6: Final answer
    x = 97,120,059.90

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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.