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Finding the Fourth Proportional to 243,642.48, 365,526.72 and 75,159.06

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Solution

The fourth proportional to 243,642.48, 365,526.72 and 75,159.06 is: 112,758.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,642.48 : 365,526.72 = 75,159.06 : x
  2. Step 2: Convert to fraction form
    243,642.48/365,526.72 = 75,159.06/x
  3. Step 3: Cross multiply
    243,642.48x = 365,526.72 × 75,159.06
  4. Step 4: Simplify right side
    243,642.48x = 27,472,644,680.08
  5. Step 5: Solve for x
    x = 27,472,644,680.08/243,642.48
  6. Step 6: Final answer
    x = 112,758.02

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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.