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Finding the Fourth Proportional to 145,784.57, 218,706.51 and 61,544.76

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Solution

The fourth proportional to 145,784.57, 218,706.51 and 61,544.76 is: 92,329.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,784.57 : 218,706.51 = 61,544.76 : x
  2. Step 2: Convert to fraction form
    145,784.57/218,706.51 = 61,544.76/x
  3. Step 3: Cross multiply
    145,784.57x = 218,706.51 × 61,544.76
  4. Step 4: Simplify right side
    145,784.57x = 13,460,239,668.39
  5. Step 5: Solve for x
    x = 13,460,239,668.39/145,784.57
  6. Step 6: Final answer
    x = 92,329.66

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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.