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Finding the Fourth Proportional to 113,410.13, 170,115.19 and 39,538.13

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Solution

The fourth proportional to 113,410.13, 170,115.19 and 39,538.13 is: 59,307.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,410.13 : 170,115.19 = 39,538.13 : x
  2. Step 2: Convert to fraction form
    113,410.13/170,115.19 = 39,538.13/x
  3. Step 3: Cross multiply
    113,410.13x = 170,115.19 × 39,538.13
  4. Step 4: Simplify right side
    113,410.13x = 6,726,035,547.77
  5. Step 5: Solve for x
    x = 6,726,035,547.77/113,410.13
  6. Step 6: Final answer
    x = 59,307.19

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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.