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Finding the Fourth Proportional to 99,006, 136,628.28 and 54,294

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Solution

The fourth proportional to 99,006, 136,628.28 and 54,294 is: 74,925.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,006 : 136,628.28 = 54,294 : x
  2. Step 2: Convert to fraction form
    99,006/136,628.28 = 54,294/x
  3. Step 3: Cross multiply
    99,006x = 136,628.28 × 54,294
  4. Step 4: Simplify right side
    99,006x = 7,418,095,834.32
  5. Step 5: Solve for x
    x = 7,418,095,834.32/99,006
  6. Step 6: Final answer
    x = 74,925.72

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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.