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Finding the Fourth Proportional to 261,657.60, 392,486.40 and 95,510.40

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Solution

The fourth proportional to 261,657.60, 392,486.40 and 95,510.40 is: 143,265.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,657.60 : 392,486.40 = 95,510.40 : x
  2. Step 2: Convert to fraction form
    261,657.60/392,486.40 = 95,510.40/x
  3. Step 3: Cross multiply
    261,657.60x = 392,486.40 × 95,510.40
  4. Step 4: Simplify right side
    261,657.60x = 37,486,533,058.56
  5. Step 5: Solve for x
    x = 37,486,533,058.56/261,657.60
  6. Step 6: Final answer
    x = 143,265.60

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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.