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Finding the Fourth Proportional to 117,802.98, 162,572.40 and 67,511.70

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Solution

The fourth proportional to 117,802.98, 162,572.40 and 67,511.70 is: 93,168.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,802.98 : 162,572.40 = 67,511.70 : x
  2. Step 2: Convert to fraction form
    117,802.98/162,572.40 = 67,511.70/x
  3. Step 3: Cross multiply
    117,802.98x = 162,572.40 × 67,511.70
  4. Step 4: Simplify right side
    117,802.98x = 10,975,539,097.08
  5. Step 5: Solve for x
    x = 10,975,539,097.08/117,802.98
  6. Step 6: Final answer
    x = 93,168.60

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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.