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Finding the Fourth Proportional to 261,262.46, 360,575.55 and 153,842.49

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Solution

The fourth proportional to 261,262.46, 360,575.55 and 153,842.49 is: 212,322.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,262.46 : 360,575.55 = 153,842.49 : x
  2. Step 2: Convert to fraction form
    261,262.46/360,575.55 = 153,842.49/x
  3. Step 3: Cross multiply
    261,262.46x = 360,575.55 × 153,842.49
  4. Step 4: Simplify right side
    261,262.46x = 55,471,840,445.12
  5. Step 5: Solve for x
    x = 55,471,840,445.12/261,262.46
  6. Step 6: Final answer
    x = 212,322.28

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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.