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Finding the Fourth Proportional to 157,000.34, 216,550.65 and 103,268.18

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Solution

The fourth proportional to 157,000.34, 216,550.65 and 103,268.18 is: 142,437.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,000.34 : 216,550.65 = 103,268.18 : x
  2. Step 2: Convert to fraction form
    157,000.34/216,550.65 = 103,268.18/x
  3. Step 3: Cross multiply
    157,000.34x = 216,550.65 × 103,268.18
  4. Step 4: Simplify right side
    157,000.34x = 22,362,791,503.32
  5. Step 5: Solve for x
    x = 22,362,791,503.32/157,000.34
  6. Step 6: Final answer
    x = 142,437.85

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