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Finding the Fourth Proportional to 74,952, 112,434.48 and 19,548

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Solution

The fourth proportional to 74,952, 112,434.48 and 19,548 is: 29,323.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,952 : 112,434.48 = 19,548 : x
  2. Step 2: Convert to fraction form
    74,952/112,434.48 = 19,548/x
  3. Step 3: Cross multiply
    74,952x = 112,434.48 × 19,548
  4. Step 4: Simplify right side
    74,952x = 2,197,869,215.04
  5. Step 5: Solve for x
    x = 2,197,869,215.04/74,952
  6. Step 6: Final answer
    x = 29,323.69

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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.