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Finding the Fourth Proportional to 111,558.06, 153,952.65 and 61,257.06

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Solution

The fourth proportional to 111,558.06, 153,952.65 and 61,257.06 is: 84,536.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,558.06 : 153,952.65 = 61,257.06 : x
  2. Step 2: Convert to fraction form
    111,558.06/153,952.65 = 61,257.06/x
  3. Step 3: Cross multiply
    111,558.06x = 153,952.65 × 61,257.06
  4. Step 4: Simplify right side
    111,558.06x = 9,430,686,718.21
  5. Step 5: Solve for x
    x = 9,430,686,718.21/111,558.06
  6. Step 6: Final answer
    x = 84,536.13

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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.