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Finding the Fourth Proportional to 162,316.80, 243,475.20 and 144,499.20

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Solution

The fourth proportional to 162,316.80, 243,475.20 and 144,499.20 is: 216,748.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,316.80 : 243,475.20 = 144,499.20 : x
  2. Step 2: Convert to fraction form
    162,316.80/243,475.20 = 144,499.20/x
  3. Step 3: Cross multiply
    162,316.80x = 243,475.20 × 144,499.20
  4. Step 4: Simplify right side
    162,316.80x = 35,181,971,619.84
  5. Step 5: Solve for x
    x = 35,181,971,619.84/162,316.80
  6. Step 6: Final answer
    x = 216,748.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.