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Finding the Fourth Proportional to 64,430.44, 88,952.88 and 42,113.32

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Solution

The fourth proportional to 64,430.44, 88,952.88 and 42,113.32 is: 58,141.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,430.44 : 88,952.88 = 42,113.32 : x
  2. Step 2: Convert to fraction form
    64,430.44/88,952.88 = 42,113.32/x
  3. Step 3: Cross multiply
    64,430.44x = 88,952.88 × 42,113.32
  4. Step 4: Simplify right side
    64,430.44x = 3,746,101,035.90
  5. Step 5: Solve for x
    x = 3,746,101,035.90/64,430.44
  6. Step 6: Final answer
    x = 58,141.79

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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.