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Finding the Fourth Proportional to 170,888.16, 235,825.04 and 99,310.24

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Solution

The fourth proportional to 170,888.16, 235,825.04 and 99,310.24 is: 137,047.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,888.16 : 235,825.04 = 99,310.24 : x
  2. Step 2: Convert to fraction form
    170,888.16/235,825.04 = 99,310.24/x
  3. Step 3: Cross multiply
    170,888.16x = 235,825.04 × 99,310.24
  4. Step 4: Simplify right side
    170,888.16x = 23,419,841,320.41
  5. Step 5: Solve for x
    x = 23,419,841,320.41/170,888.16
  6. Step 6: Final answer
    x = 137,047.77

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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.