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Finding the Fourth Proportional to 369,343.80, 553,895.75 and 141,627.44

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Solution

The fourth proportional to 369,343.80, 553,895.75 and 141,627.44 is: 212,395.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,343.80 : 553,895.75 = 141,627.44 : x
  2. Step 2: Convert to fraction form
    369,343.80/553,895.75 = 141,627.44/x
  3. Step 3: Cross multiply
    369,343.80x = 553,895.75 × 141,627.44
  4. Step 4: Simplify right side
    369,343.80x = 78,446,838,838.19
  5. Step 5: Solve for x
    x = 78,446,838,838.19/369,343.80
  6. Step 6: Final answer
    x = 212,395.17

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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.