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Finding the Fourth Proportional to 67,145,874.80, 100,718,812.20 and 59,209,689.20

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Solution

The fourth proportional to 67,145,874.80, 100,718,812.20 and 59,209,689.20 is: 88,814,533.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,145,874.80 : 100,718,812.20 = 59,209,689.20 : x
  2. Step 2: Convert to fraction form
    67,145,874.80/100,718,812.20 = 59,209,689.20/x
  3. Step 3: Cross multiply
    67,145,874.80x = 100,718,812.20 × 59,209,689.20
  4. Step 4: Simplify right side
    67,145,874.80x = 5,963,529,566,955,169
  5. Step 5: Solve for x
    x = 5,963,529,566,955,169/67,145,874.80
  6. Step 6: Final answer
    x = 88,814,533.80

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1.5x scale

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.