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Finding the Fourth Proportional to 158,507.32, 218,762.47 and 98,097.42

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Solution

The fourth proportional to 158,507.32, 218,762.47 and 98,097.42 is: 135,388.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,507.32 : 218,762.47 = 98,097.42 : x
  2. Step 2: Convert to fraction form
    158,507.32/218,762.47 = 98,097.42/x
  3. Step 3: Cross multiply
    158,507.32x = 218,762.47 × 98,097.42
  4. Step 4: Simplify right side
    158,507.32x = 21,460,033,899.83
  5. Step 5: Solve for x
    x = 21,460,033,899.83/158,507.32
  6. Step 6: Final answer
    x = 135,388.28

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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.