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Finding the Fourth Proportional to 237,864.40, 328,425.04 and 153,129.04

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Solution

The fourth proportional to 237,864.40, 328,425.04 and 153,129.04 is: 211,428.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    237,864.40 : 328,425.04 = 153,129.04 : x
  2. Step 2: Convert to fraction form
    237,864.40/328,425.04 = 153,129.04/x
  3. Step 3: Cross multiply
    237,864.40x = 328,425.04 × 153,129.04
  4. Step 4: Simplify right side
    237,864.40x = 50,291,411,087.16
  5. Step 5: Solve for x
    x = 50,291,411,087.16/237,864.40
  6. Step 6: Final answer
    x = 211,428.91

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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.