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Finding the Fourth Proportional to 107,285.94, 148,020.35 and 61,957.94

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Solution

The fourth proportional to 107,285.94, 148,020.35 and 61,957.94 is: 85,482.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,285.94 : 148,020.35 = 61,957.94 : x
  2. Step 2: Convert to fraction form
    107,285.94/148,020.35 = 61,957.94/x
  3. Step 3: Cross multiply
    107,285.94x = 148,020.35 × 61,957.94
  4. Step 4: Simplify right side
    107,285.94x = 9,171,035,964.08
  5. Step 5: Solve for x
    x = 9,171,035,964.08/107,285.94
  6. Step 6: Final answer
    x = 85,482.18

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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.