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Finding the Fourth Proportional to 104,957.34, 144,842.64 and 57,210.69

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Solution

The fourth proportional to 104,957.34, 144,842.64 and 57,210.69 is: 78,951.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,957.34 : 144,842.64 = 57,210.69 : x
  2. Step 2: Convert to fraction form
    104,957.34/144,842.64 = 57,210.69/x
  3. Step 3: Cross multiply
    104,957.34x = 144,842.64 × 57,210.69
  4. Step 4: Simplify right side
    104,957.34x = 8,286,547,375.82
  5. Step 5: Solve for x
    x = 8,286,547,375.82/104,957.34
  6. Step 6: Final answer
    x = 78,951.58

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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.