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Finding the Fourth Proportional to 127,570.77, 176,069.25 and 73,888.47

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Solution

The fourth proportional to 127,570.77, 176,069.25 and 73,888.47 is: 101,978.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,570.77 : 176,069.25 = 73,888.47 : x
  2. Step 2: Convert to fraction form
    127,570.77/176,069.25 = 73,888.47/x
  3. Step 3: Cross multiply
    127,570.77x = 176,069.25 × 73,888.47
  4. Step 4: Simplify right side
    127,570.77x = 13,009,487,496.55
  5. Step 5: Solve for x
    x = 13,009,487,496.55/127,570.77
  6. Step 6: Final answer
    x = 101,978.59

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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.