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Finding the Fourth Proportional to 67,068,218.70, 100,602,328.05 and 67,068,218.70

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Solution

The fourth proportional to 67,068,218.70, 100,602,328.05 and 67,068,218.70 is: 100,602,328.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,068,218.70 : 100,602,328.05 = 67,068,218.70 : x
  2. Step 2: Convert to fraction form
    67,068,218.70/100,602,328.05 = 67,068,218.70/x
  3. Step 3: Cross multiply
    67,068,218.70x = 100,602,328.05 × 67,068,218.70
  4. Step 4: Simplify right side
    67,068,218.70x = 6,747,218,939,386,545
  5. Step 5: Solve for x
    x = 6,747,218,939,386,545/67,068,218.70
  6. Step 6: Final answer
    x = 100,602,328.05

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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.