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Finding the Fourth Proportional to 261,138.17, 360,480.90 and 176,370.05

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Solution

The fourth proportional to 261,138.17, 360,480.90 and 176,370.05 is: 243,465.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,138.17 : 360,480.90 = 176,370.05 : x
  2. Step 2: Convert to fraction form
    261,138.17/360,480.90 = 176,370.05/x
  3. Step 3: Cross multiply
    261,138.17x = 360,480.90 × 176,370.05
  4. Step 4: Simplify right side
    261,138.17x = 63,578,034,357.05
  5. Step 5: Solve for x
    x = 63,578,034,357.05/261,138.17
  6. Step 6: Final answer
    x = 243,465.11

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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.