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Finding the Fourth Proportional to 242,606.61, 334,792.68 and 135,174.32

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Solution

The fourth proportional to 242,606.61, 334,792.68 and 135,174.32 is: 186,538.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    242,606.61 : 334,792.68 = 135,174.32 : x
  2. Step 2: Convert to fraction form
    242,606.61/334,792.68 = 135,174.32/x
  3. Step 3: Cross multiply
    242,606.61x = 334,792.68 × 135,174.32
  4. Step 4: Simplify right side
    242,606.61x = 45,255,371,934.58
  5. Step 5: Solve for x
    x = 45,255,371,934.58/242,606.61
  6. Step 6: Final answer
    x = 186,538.08

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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.