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Finding the Fourth Proportional to 81,368.66, 112,290.84 and 45,566.24

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Solution

The fourth proportional to 81,368.66, 112,290.84 and 45,566.24 is: 62,882.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,368.66 : 112,290.84 = 45,566.24 : x
  2. Step 2: Convert to fraction form
    81,368.66/112,290.84 = 45,566.24/x
  3. Step 3: Cross multiply
    81,368.66x = 112,290.84 × 45,566.24
  4. Step 4: Simplify right side
    81,368.66x = 5,116,671,365.24
  5. Step 5: Solve for x
    x = 5,116,671,365.24/81,368.66
  6. Step 6: Final answer
    x = 62,882.58

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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.