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Finding the Fourth Proportional to 144,025.60, 216,038.40 and 96,786.40

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Solution

The fourth proportional to 144,025.60, 216,038.40 and 96,786.40 is: 145,179.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,025.60 : 216,038.40 = 96,786.40 : x
  2. Step 2: Convert to fraction form
    144,025.60/216,038.40 = 96,786.40/x
  3. Step 3: Cross multiply
    144,025.60x = 216,038.40 × 96,786.40
  4. Step 4: Simplify right side
    144,025.60x = 20,909,578,997.76
  5. Step 5: Solve for x
    x = 20,909,578,997.76/144,025.60
  6. Step 6: Final answer
    x = 145,179.60

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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.