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Finding the Fourth Proportional to 156,776.80, 235,097.16 and 56,903.80

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Solution

The fourth proportional to 156,776.80, 235,097.16 and 56,903.80 is: 85,331.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,776.80 : 235,097.16 = 56,903.80 : x
  2. Step 2: Convert to fraction form
    156,776.80/235,097.16 = 56,903.80/x
  3. Step 3: Cross multiply
    156,776.80x = 235,097.16 × 56,903.80
  4. Step 4: Simplify right side
    156,776.80x = 13,377,921,773.21
  5. Step 5: Solve for x
    x = 13,377,921,773.21/156,776.80
  6. Step 6: Final answer
    x = 85,331.00

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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.