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Finding the Fourth Proportional to 160,407.25, 221,420.42 and 93,339.25

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Solution

The fourth proportional to 160,407.25, 221,420.42 and 93,339.25 is: 128,842.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,407.25 : 221,420.42 = 93,339.25 : x
  2. Step 2: Convert to fraction form
    160,407.25/221,420.42 = 93,339.25/x
  3. Step 3: Cross multiply
    160,407.25x = 221,420.42 × 93,339.25
  4. Step 4: Simplify right side
    160,407.25x = 20,667,215,937.49
  5. Step 5: Solve for x
    x = 20,667,215,937.49/160,407.25
  6. Step 6: Final answer
    x = 128,842.16

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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.