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Finding the Fourth Proportional to 118,495.95, 163,526.36 and 70,753.47

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Solution

The fourth proportional to 118,495.95, 163,526.36 and 70,753.47 is: 97,640.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,495.95 : 163,526.36 = 70,753.47 : x
  2. Step 2: Convert to fraction form
    118,495.95/163,526.36 = 70,753.47/x
  3. Step 3: Cross multiply
    118,495.95x = 163,526.36 × 70,753.47
  4. Step 4: Simplify right side
    118,495.95x = 11,570,057,052.70
  5. Step 5: Solve for x
    x = 11,570,057,052.70/118,495.95
  6. Step 6: Final answer
    x = 97,640.95

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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.