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Finding the Fourth Proportional to 574,218, 861,261.39 and 153,526.68

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Solution

The fourth proportional to 574,218, 861,261.39 and 153,526.68 is: 230,272.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    574,218 : 861,261.39 = 153,526.68 : x
  2. Step 2: Convert to fraction form
    574,218/861,261.39 = 153,526.68/x
  3. Step 3: Cross multiply
    574,218x = 861,261.39 × 153,526.68
  4. Step 4: Simplify right side
    574,218x = 132,226,601,818.89
  5. Step 5: Solve for x
    x = 132,226,601,818.89/574,218
  6. Step 6: Final answer
    x = 230,272.48

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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.