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Finding the Fourth Proportional to 180,098.47, 248,536.65 and 98,428.39

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Solution

The fourth proportional to 180,098.47, 248,536.65 and 98,428.39 is: 135,831.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,098.47 : 248,536.65 = 98,428.39 : x
  2. Step 2: Convert to fraction form
    180,098.47/248,536.65 = 98,428.39/x
  3. Step 3: Cross multiply
    180,098.47x = 248,536.65 × 98,428.39
  4. Step 4: Simplify right side
    180,098.47x = 24,463,062,315.49
  5. Step 5: Solve for x
    x = 24,463,062,315.49/180,098.47
  6. Step 6: Final answer
    x = 135,831.59

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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.