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Finding the Fourth Proportional to 105,810.60, 148,342.20 and 105,810.60

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Solution

The fourth proportional to 105,810.60, 148,342.20 and 105,810.60 is: 148,342.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,810.60 : 148,342.20 = 105,810.60 : x
  2. Step 2: Convert to fraction form
    105,810.60/148,342.20 = 105,810.60/x
  3. Step 3: Cross multiply
    105,810.60x = 148,342.20 × 105,810.60
  4. Step 4: Simplify right side
    105,810.60x = 15,696,177,187.32
  5. Step 5: Solve for x
    x = 15,696,177,187.32/105,810.60
  6. Step 6: Final answer
    x = 148,342.20

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1.5x scale

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.