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Finding the Fourth Proportional to 75,681.76, 104,458.32 and 43,868.32

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Solution

The fourth proportional to 75,681.76, 104,458.32 and 43,868.32 is: 60,548.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,681.76 : 104,458.32 = 43,868.32 : x
  2. Step 2: Convert to fraction form
    75,681.76/104,458.32 = 43,868.32/x
  3. Step 3: Cross multiply
    75,681.76x = 104,458.32 × 43,868.32
  4. Step 4: Simplify right side
    75,681.76x = 4,582,411,008.42
  5. Step 5: Solve for x
    x = 4,582,411,008.42/75,681.76
  6. Step 6: Final answer
    x = 60,548.42

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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.