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Finding the Fourth Proportional to 163,502.40, 245,315.87 and 56,898.20

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Solution

The fourth proportional to 163,502.40, 245,315.87 and 56,898.20 is: 85,368.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,502.40 : 245,315.87 = 56,898.20 : x
  2. Step 2: Convert to fraction form
    163,502.40/245,315.87 = 56,898.20/x
  3. Step 3: Cross multiply
    163,502.40x = 245,315.87 × 56,898.20
  4. Step 4: Simplify right side
    163,502.40x = 13,958,029,923.36
  5. Step 5: Solve for x
    x = 13,958,029,923.36/163,502.40
  6. Step 6: Final answer
    x = 85,368.96

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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.