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Finding the Fourth Proportional to 221,417.52, 305,554.52 and 125,924.08

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Solution

The fourth proportional to 221,417.52, 305,554.52 and 125,924.08 is: 173,774.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,417.52 : 305,554.52 = 125,924.08 : x
  2. Step 2: Convert to fraction form
    221,417.52/305,554.52 = 125,924.08/x
  3. Step 3: Cross multiply
    221,417.52x = 305,554.52 × 125,924.08
  4. Step 4: Simplify right side
    221,417.52x = 38,476,671,820.84
  5. Step 5: Solve for x
    x = 38,476,671,820.84/221,417.52
  6. Step 6: Final answer
    x = 173,774.29

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1.5x scale

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.