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Finding the Fourth Proportional to 108,547.40, 162,993.90 and 73,641.80

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Solution

The fourth proportional to 108,547.40, 162,993.90 and 73,641.80 is: 110,579.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,547.40 : 162,993.90 = 73,641.80 : x
  2. Step 2: Convert to fraction form
    108,547.40/162,993.90 = 73,641.80/x
  3. Step 3: Cross multiply
    108,547.40x = 162,993.90 × 73,641.80
  4. Step 4: Simplify right side
    108,547.40x = 12,003,164,185.02
  5. Step 5: Solve for x
    x = 12,003,164,185.02/108,547.40
  6. Step 6: Final answer
    x = 110,579.93

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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.