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Finding the Fourth Proportional to 104,807.20, 157,210.80 and 73,314.40

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Solution

The fourth proportional to 104,807.20, 157,210.80 and 73,314.40 is: 109,971.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,807.20 : 157,210.80 = 73,314.40 : x
  2. Step 2: Convert to fraction form
    104,807.20/157,210.80 = 73,314.40/x
  3. Step 3: Cross multiply
    104,807.20x = 157,210.80 × 73,314.40
  4. Step 4: Simplify right side
    104,807.20x = 11,525,815,475.52
  5. Step 5: Solve for x
    x = 11,525,815,475.52/104,807.20
  6. Step 6: Final answer
    x = 109,971.60

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1.5x scale

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.