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Finding the Fourth Proportional to 316,770.76, 437,140.16 and 171,572.93

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Solution

The fourth proportional to 316,770.76, 437,140.16 and 171,572.93 is: 236,768.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,770.76 : 437,140.16 = 171,572.93 : x
  2. Step 2: Convert to fraction form
    316,770.76/437,140.16 = 171,572.93/x
  3. Step 3: Cross multiply
    316,770.76x = 437,140.16 × 171,572.93
  4. Step 4: Simplify right side
    316,770.76x = 75,001,417,954.38
  5. Step 5: Solve for x
    x = 75,001,417,954.38/316,770.76
  6. Step 6: Final answer
    x = 236,768.75

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1.5x scale

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.