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Finding the Fourth Proportional to 273,748,502, 377,679,931.80 and 156,189,378.80

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Solution

The fourth proportional to 273,748,502, 377,679,931.80 and 156,189,378.80 is: 215,488,280.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    273,748,502 : 377,679,931.80 = 156,189,378.80 : x
  2. Step 2: Convert to fraction form
    273,748,502/377,679,931.80 = 156,189,378.80/x
  3. Step 3: Cross multiply
    273,748,502x = 377,679,931.80 × 156,189,378.80
  4. Step 4: Simplify right side
    273,748,502x = 58,989,593,933,068,376
  5. Step 5: Solve for x
    x = 58,989,593,933,068,376/273,748,502
  6. Step 6: Final answer
    x = 215,488,280.31

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.