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Finding the Fourth Proportional to 144,838.76, 217,258.32 and 39,658.64

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Solution

The fourth proportional to 144,838.76, 217,258.32 and 39,658.64 is: 59,488.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,838.76 : 217,258.32 = 39,658.64 : x
  2. Step 2: Convert to fraction form
    144,838.76/217,258.32 = 39,658.64/x
  3. Step 3: Cross multiply
    144,838.76x = 217,258.32 × 39,658.64
  4. Step 4: Simplify right side
    144,838.76x = 8,616,169,499.88
  5. Step 5: Solve for x
    x = 8,616,169,499.88/144,838.76
  6. Step 6: Final answer
    x = 59,488.01

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.