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Finding the Fourth Proportional to 310,014.04, 465,026.46 and 85,373.32

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Solution

The fourth proportional to 310,014.04, 465,026.46 and 85,373.32 is: 128,061.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    310,014.04 : 465,026.46 = 85,373.32 : x
  2. Step 2: Convert to fraction form
    310,014.04/465,026.46 = 85,373.32/x
  3. Step 3: Cross multiply
    310,014.04x = 465,026.46 × 85,373.32
  4. Step 4: Simplify right side
    310,014.04x = 39,700,852,778.05
  5. Step 5: Solve for x
    x = 39,700,852,778.05/310,014.04
  6. Step 6: Final answer
    x = 128,061.47

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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.