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Finding the Fourth Proportional to 145,568.94, 218,223.55 and 56,801.80

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Solution

The fourth proportional to 145,568.94, 218,223.55 and 56,801.80 is: 85,152.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,568.94 : 218,223.55 = 56,801.80 : x
  2. Step 2: Convert to fraction form
    145,568.94/218,223.55 = 56,801.80/x
  3. Step 3: Cross multiply
    145,568.94x = 218,223.55 × 56,801.80
  4. Step 4: Simplify right side
    145,568.94x = 12,395,490,442.39
  5. Step 5: Solve for x
    x = 12,395,490,442.39/145,568.94
  6. Step 6: Final answer
    x = 85,152.03

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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.