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Finding the Fourth Proportional to 58,643.91, 88,087.71 and 47,411.93

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Solution

The fourth proportional to 58,643.91, 88,087.71 and 47,411.93 is: 71,216.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,643.91 : 88,087.71 = 47,411.93 : x
  2. Step 2: Convert to fraction form
    58,643.91/88,087.71 = 47,411.93/x
  3. Step 3: Cross multiply
    58,643.91x = 88,087.71 × 47,411.93
  4. Step 4: Simplify right side
    58,643.91x = 4,176,407,899.94
  5. Step 5: Solve for x
    x = 4,176,407,899.94/58,643.91
  6. Step 6: Final answer
    x = 71,216.40

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.