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Finding the Fourth Proportional to 215,641.50, 297,587.28 and 118,848.81

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Solution

The fourth proportional to 215,641.50, 297,587.28 and 118,848.81 is: 164,012.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,641.50 : 297,587.28 = 118,848.81 : x
  2. Step 2: Convert to fraction form
    215,641.50/297,587.28 = 118,848.81/x
  3. Step 3: Cross multiply
    215,641.50x = 297,587.28 × 118,848.81
  4. Step 4: Simplify right side
    215,641.50x = 35,367,894,099.14
  5. Step 5: Solve for x
    x = 35,367,894,099.14/215,641.50
  6. Step 6: Final answer
    x = 164,012.47

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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.