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Finding the Fourth Proportional to 144,553.61, 216,705.68 and 69,570.60

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Solution

The fourth proportional to 144,553.61, 216,705.68 and 69,570.60 is: 104,295.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,553.61 : 216,705.68 = 69,570.60 : x
  2. Step 2: Convert to fraction form
    144,553.61/216,705.68 = 69,570.60/x
  3. Step 3: Cross multiply
    144,553.61x = 216,705.68 × 69,570.60
  4. Step 4: Simplify right side
    144,553.61x = 15,076,343,281.40
  5. Step 5: Solve for x
    x = 15,076,343,281.40/144,553.61
  6. Step 6: Final answer
    x = 104,295.86

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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.