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Finding the Fourth Proportional to 144,427.93, 216,461.45 and 69,528.04

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Solution

The fourth proportional to 144,427.93, 216,461.45 and 69,528.04 is: 104,205.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,427.93 : 216,461.45 = 69,528.04 : x
  2. Step 2: Convert to fraction form
    144,427.93/216,461.45 = 69,528.04/x
  3. Step 3: Cross multiply
    144,427.93x = 216,461.45 × 69,528.04
  4. Step 4: Simplify right side
    144,427.93x = 15,050,139,986.72
  5. Step 5: Solve for x
    x = 15,050,139,986.72/144,427.93
  6. Step 6: Final answer
    x = 104,205.19

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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.