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Finding the Fourth Proportional to 208,707.64, 288,016.52 and 118,061.66

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Solution

The fourth proportional to 208,707.64, 288,016.52 and 118,061.66 is: 162,925.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,707.64 : 288,016.52 = 118,061.66 : x
  2. Step 2: Convert to fraction form
    208,707.64/288,016.52 = 118,061.66/x
  3. Step 3: Cross multiply
    208,707.64x = 288,016.52 × 118,061.66
  4. Step 4: Simplify right side
    208,707.64x = 34,003,708,458.62
  5. Step 5: Solve for x
    x = 34,003,708,458.62/208,707.64
  6. Step 6: Final answer
    x = 162,925.08

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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.