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Finding the Fourth Proportional to 186,381.95, 279,582.10 and 53,281.67

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Solution

The fourth proportional to 186,381.95, 279,582.10 and 53,281.67 is: 79,925.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,381.95 : 279,582.10 = 53,281.67 : x
  2. Step 2: Convert to fraction form
    186,381.95/279,582.10 = 53,281.67/x
  3. Step 3: Cross multiply
    186,381.95x = 279,582.10 × 53,281.67
  4. Step 4: Simplify right side
    186,381.95x = 14,896,599,658.99
  5. Step 5: Solve for x
    x = 14,896,599,658.99/186,381.95
  6. Step 6: Final answer
    x = 79,925.12

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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.