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Finding the Fourth Proportional to 88,702.65, 133,053.98 and 84,328.65

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Solution

The fourth proportional to 88,702.65, 133,053.98 and 84,328.65 is: 126,492.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,702.65 : 133,053.98 = 84,328.65 : x
  2. Step 2: Convert to fraction form
    88,702.65/133,053.98 = 84,328.65/x
  3. Step 3: Cross multiply
    88,702.65x = 133,053.98 × 84,328.65
  4. Step 4: Simplify right side
    88,702.65x = 11,220,262,088.88
  5. Step 5: Solve for x
    x = 11,220,262,088.88/88,702.65
  6. Step 6: Final answer
    x = 126,492.98

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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.