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Finding the Fourth Proportional to 158,536.48, 218,802.64 and 98,126.48

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Solution

The fourth proportional to 158,536.48, 218,802.64 and 98,126.48 is: 135,428.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,536.48 : 218,802.64 = 98,126.48 : x
  2. Step 2: Convert to fraction form
    158,536.48/218,802.64 = 98,126.48/x
  3. Step 3: Cross multiply
    158,536.48x = 218,802.64 × 98,126.48
  4. Step 4: Simplify right side
    158,536.48x = 21,470,332,877.91
  5. Step 5: Solve for x
    x = 21,470,332,877.91/158,536.48
  6. Step 6: Final answer
    x = 135,428.34

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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.