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Finding the Fourth Proportional to 162,445.38, 223,969.10 and 104,988.03

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Solution

The fourth proportional to 162,445.38, 223,969.10 and 104,988.03 is: 144,750.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,445.38 : 223,969.10 = 104,988.03 : x
  2. Step 2: Convert to fraction form
    162,445.38/223,969.10 = 104,988.03/x
  3. Step 3: Cross multiply
    162,445.38x = 223,969.10 × 104,988.03
  4. Step 4: Simplify right side
    162,445.38x = 23,514,074,064.93
  5. Step 5: Solve for x
    x = 23,514,074,064.93/162,445.38
  6. Step 6: Final answer
    x = 144,750.65

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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.