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Finding the Fourth Proportional to 169,317.76, 233,700.24 and 100,465.60

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Solution

The fourth proportional to 169,317.76, 233,700.24 and 100,465.60 is: 138,667.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,317.76 : 233,700.24 = 100,465.60 : x
  2. Step 2: Convert to fraction form
    169,317.76/233,700.24 = 100,465.60/x
  3. Step 3: Cross multiply
    169,317.76x = 233,700.24 × 100,465.60
  4. Step 4: Simplify right side
    169,317.76x = 23,478,834,831.74
  5. Step 5: Solve for x
    x = 23,478,834,831.74/169,317.76
  6. Step 6: Final answer
    x = 138,667.29

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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.