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Finding the Fourth Proportional to 162,486.64, 224,221.26 and 89,887.60

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Solution

The fourth proportional to 162,486.64, 224,221.26 and 89,887.60 is: 124,039.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,486.64 : 224,221.26 = 89,887.60 : x
  2. Step 2: Convert to fraction form
    162,486.64/224,221.26 = 89,887.60/x
  3. Step 3: Cross multiply
    162,486.64x = 224,221.26 × 89,887.60
  4. Step 4: Simplify right side
    162,486.64x = 20,154,710,930.38
  5. Step 5: Solve for x
    x = 20,154,710,930.38/162,486.64
  6. Step 6: Final answer
    x = 124,039.19

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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.