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Finding the Fourth Proportional to 144,746.60, 217,091.10 and 69,866.60

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Solution

The fourth proportional to 144,746.60, 217,091.10 and 69,866.60 is: 104,786.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,746.60 : 217,091.10 = 69,866.60 : x
  2. Step 2: Convert to fraction form
    144,746.60/217,091.10 = 69,866.60/x
  3. Step 3: Cross multiply
    144,746.60x = 217,091.10 × 69,866.60
  4. Step 4: Simplify right side
    144,746.60x = 15,167,417,047.26
  5. Step 5: Solve for x
    x = 15,167,417,047.26/144,746.60
  6. Step 6: Final answer
    x = 104,786.00

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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.