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Finding the Fourth Proportional to 70,884,803.60, 106,327,205.40 and 38,636,176.40

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Solution

The fourth proportional to 70,884,803.60, 106,327,205.40 and 38,636,176.40 is: 57,954,264.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,884,803.60 : 106,327,205.40 = 38,636,176.40 : x
  2. Step 2: Convert to fraction form
    70,884,803.60/106,327,205.40 = 38,636,176.40/x
  3. Step 3: Cross multiply
    70,884,803.60x = 106,327,205.40 × 38,636,176.40
  4. Step 4: Simplify right side
    70,884,803.60x = 4,108,076,663,953,432.50
  5. Step 5: Solve for x
    x = 4,108,076,663,953,432.50/70,884,803.60
  6. Step 6: Final answer
    x = 57,954,264.60

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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.