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Finding the Fourth Proportional to 78,862.58, 118,310.88 and 22,702.32

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Solution

The fourth proportional to 78,862.58, 118,310.88 and 22,702.32 is: 34,058.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,862.58 : 118,310.88 = 22,702.32 : x
  2. Step 2: Convert to fraction form
    78,862.58/118,310.88 = 22,702.32/x
  3. Step 3: Cross multiply
    78,862.58x = 118,310.88 × 22,702.32
  4. Step 4: Simplify right side
    78,862.58x = 2,685,931,457.24
  5. Step 5: Solve for x
    x = 2,685,931,457.24/78,862.58
  6. Step 6: Final answer
    x = 34,058.38

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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.