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Finding the Fourth Proportional to 151,685.89, 209,368.16 and 88,044.19

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Solution

The fourth proportional to 151,685.89, 209,368.16 and 88,044.19 is: 121,525.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,685.89 : 209,368.16 = 88,044.19 : x
  2. Step 2: Convert to fraction form
    151,685.89/209,368.16 = 88,044.19/x
  3. Step 3: Cross multiply
    151,685.89x = 209,368.16 × 88,044.19
  4. Step 4: Simplify right side
    151,685.89x = 18,433,649,425.51
  5. Step 5: Solve for x
    x = 18,433,649,425.51/151,685.89
  6. Step 6: Final answer
    x = 121,525.14

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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.