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Finding the Fourth Proportional to 116,043.20, 162,810.40 and 116,043.20

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Solution

The fourth proportional to 116,043.20, 162,810.40 and 116,043.20 is: 162,810.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,043.20 : 162,810.40 = 116,043.20 : x
  2. Step 2: Convert to fraction form
    116,043.20/162,810.40 = 116,043.20/x
  3. Step 3: Cross multiply
    116,043.20x = 162,810.40 × 116,043.20
  4. Step 4: Simplify right side
    116,043.20x = 18,893,039,809.28
  5. Step 5: Solve for x
    x = 18,893,039,809.28/116,043.20
  6. Step 6: Final answer
    x = 162,810.40

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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.