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Finding the Fourth Proportional to 162,429.51, 243,660.97 and 61,312.73

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Solution

The fourth proportional to 162,429.51, 243,660.97 and 61,312.73 is: 91,975.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,429.51 : 243,660.97 = 61,312.73 : x
  2. Step 2: Convert to fraction form
    162,429.51/243,660.97 = 61,312.73/x
  3. Step 3: Cross multiply
    162,429.51x = 243,660.97 × 61,312.73
  4. Step 4: Simplify right side
    162,429.51x = 14,939,518,046.84
  5. Step 5: Solve for x
    x = 14,939,518,046.84/162,429.51
  6. Step 6: Final answer
    x = 91,975.40

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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.