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Finding the Fourth Proportional to 88,907.10, 133,360.65 and 83,838.30

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Solution

The fourth proportional to 88,907.10, 133,360.65 and 83,838.30 is: 125,757.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,907.10 : 133,360.65 = 83,838.30 : x
  2. Step 2: Convert to fraction form
    88,907.10/133,360.65 = 83,838.30/x
  3. Step 3: Cross multiply
    88,907.10x = 133,360.65 × 83,838.30
  4. Step 4: Simplify right side
    88,907.10x = 11,180,730,182.90
  5. Step 5: Solve for x
    x = 11,180,730,182.90/88,907.10
  6. Step 6: Final answer
    x = 125,757.45

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1.5x scale

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.