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Finding the Fourth Proportional to 156,907.53, 216,525.21 and 88,920.52

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Solution

The fourth proportional to 156,907.53, 216,525.21 and 88,920.52 is: 122,706.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,907.53 : 216,525.21 = 88,920.52 : x
  2. Step 2: Convert to fraction form
    156,907.53/216,525.21 = 88,920.52/x
  3. Step 3: Cross multiply
    156,907.53x = 216,525.21 × 88,920.52
  4. Step 4: Simplify right side
    156,907.53x = 19,253,534,266.31
  5. Step 5: Solve for x
    x = 19,253,534,266.31/156,907.53
  6. Step 6: Final answer
    x = 122,706.25

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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.