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Finding the Fourth Proportional to 111,502.50, 153,870.90 and 60,515.33

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Solution

The fourth proportional to 111,502.50, 153,870.90 and 60,515.33 is: 83,509.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,502.50 : 153,870.90 = 60,515.33 : x
  2. Step 2: Convert to fraction form
    111,502.50/153,870.90 = 60,515.33/x
  3. Step 3: Cross multiply
    111,502.50x = 153,870.90 × 60,515.33
  4. Step 4: Simplify right side
    111,502.50x = 9,311,547,521.54
  5. Step 5: Solve for x
    x = 9,311,547,521.54/111,502.50
  6. Step 6: Final answer
    x = 83,509.76

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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.