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Finding the Fourth Proportional to 152,881.70, 229,322.55 and 40,561.70

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Solution

The fourth proportional to 152,881.70, 229,322.55 and 40,561.70 is: 60,842.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,881.70 : 229,322.55 = 40,561.70 : x
  2. Step 2: Convert to fraction form
    152,881.70/229,322.55 = 40,561.70/x
  3. Step 3: Cross multiply
    152,881.70x = 229,322.55 × 40,561.70
  4. Step 4: Simplify right side
    152,881.70x = 9,301,712,476.34
  5. Step 5: Solve for x
    x = 9,301,712,476.34/152,881.70
  6. Step 6: Final answer
    x = 60,842.55

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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.