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Finding the Fourth Proportional to 153,551.25, 211,787.93 and 101,774.71

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Solution

The fourth proportional to 153,551.25, 211,787.93 and 101,774.71 is: 140,374.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,551.25 : 211,787.93 = 101,774.71 : x
  2. Step 2: Convert to fraction form
    153,551.25/211,787.93 = 101,774.71/x
  3. Step 3: Cross multiply
    153,551.25x = 211,787.93 × 101,774.71
  4. Step 4: Simplify right side
    153,551.25x = 21,554,654,882.22
  5. Step 5: Solve for x
    x = 21,554,654,882.22/153,551.25
  6. Step 6: Final answer
    x = 140,374.34

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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.