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Finding the Fourth Proportional to 101,182.68, 139,756.26 and 75,802.53

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Solution

The fourth proportional to 101,182.68, 139,756.26 and 75,802.53 is: 104,700.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,182.68 : 139,756.26 = 75,802.53 : x
  2. Step 2: Convert to fraction form
    101,182.68/139,756.26 = 75,802.53/x
  3. Step 3: Cross multiply
    101,182.68x = 139,756.26 × 75,802.53
  4. Step 4: Simplify right side
    101,182.68x = 10,593,878,091.34
  5. Step 5: Solve for x
    x = 10,593,878,091.34/101,182.68
  6. Step 6: Final answer
    x = 104,700.51

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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.