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Finding the Fourth Proportional to 167,258.90, 230,816.31 and 90,779.51

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Solution

The fourth proportional to 167,258.90, 230,816.31 and 90,779.51 is: 125,275.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,258.90 : 230,816.31 = 90,779.51 : x
  2. Step 2: Convert to fraction form
    167,258.90/230,816.31 = 90,779.51/x
  3. Step 3: Cross multiply
    167,258.90x = 230,816.31 × 90,779.51
  4. Step 4: Simplify right side
    167,258.90x = 20,953,391,521.81
  5. Step 5: Solve for x
    x = 20,953,391,521.81/167,258.90
  6. Step 6: Final answer
    x = 125,275.20

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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.