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Finding the Fourth Proportional to 108,803.90, 150,142.64 and 60,403.00

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Solution

The fourth proportional to 108,803.90, 150,142.64 and 60,403.00 is: 83,352.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,803.90 : 150,142.64 = 60,403.00 : x
  2. Step 2: Convert to fraction form
    108,803.90/150,142.64 = 60,403.00/x
  3. Step 3: Cross multiply
    108,803.90x = 150,142.64 × 60,403.00
  4. Step 4: Simplify right side
    108,803.90x = 9,069,066,291.36
  5. Step 5: Solve for x
    x = 9,069,066,291.36/108,803.90
  6. Step 6: Final answer
    x = 83,352.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.