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Finding the Fourth Proportional to 158,572.76, 218,840.54 and 104,763.51

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Solution

The fourth proportional to 158,572.76, 218,840.54 and 104,763.51 is: 144,580.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,572.76 : 218,840.54 = 104,763.51 : x
  2. Step 2: Convert to fraction form
    158,572.76/218,840.54 = 104,763.51/x
  3. Step 3: Cross multiply
    158,572.76x = 218,840.54 × 104,763.51
  4. Step 4: Simplify right side
    158,572.76x = 22,926,502,576.88
  5. Step 5: Solve for x
    x = 22,926,502,576.88/158,572.76
  6. Step 6: Final answer
    x = 144,580.34

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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.