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Finding the Fourth Proportional to 109,412.60, 152,866.60 and 109,412.60

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Solution

The fourth proportional to 109,412.60, 152,866.60 and 109,412.60 is: 152,866.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,412.60 : 152,866.60 = 109,412.60 : x
  2. Step 2: Convert to fraction form
    109,412.60/152,866.60 = 109,412.60/x
  3. Step 3: Cross multiply
    109,412.60x = 152,866.60 × 109,412.60
  4. Step 4: Simplify right side
    109,412.60x = 16,725,532,159.16
  5. Step 5: Solve for x
    x = 16,725,532,159.16/109,412.60
  6. Step 6: Final answer
    x = 152,866.60

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.