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Finding the Fourth Proportional to 147,116.10, 220,904.55 and 84,908.10

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Solution

The fourth proportional to 147,116.10, 220,904.55 and 84,908.10 is: 127,495.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,116.10 : 220,904.55 = 84,908.10 : x
  2. Step 2: Convert to fraction form
    147,116.10/220,904.55 = 84,908.10/x
  3. Step 3: Cross multiply
    147,116.10x = 220,904.55 × 84,908.10
  4. Step 4: Simplify right side
    147,116.10x = 18,756,585,621.86
  5. Step 5: Solve for x
    x = 18,756,585,621.86/147,116.10
  6. Step 6: Final answer
    x = 127,495.13

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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.