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Finding the Fourth Proportional to 98,503.50, 147,518.48 and 56,255.64

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Solution

The fourth proportional to 98,503.50, 147,518.48 and 56,255.64 is: 84,248.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,503.50 : 147,518.48 = 56,255.64 : x
  2. Step 2: Convert to fraction form
    98,503.50/147,518.48 = 56,255.64/x
  3. Step 3: Cross multiply
    98,503.50x = 147,518.48 × 56,255.64
  4. Step 4: Simplify right side
    98,503.50x = 8,298,746,504.23
  5. Step 5: Solve for x
    x = 8,298,746,504.23/98,503.50
  6. Step 6: Final answer
    x = 84,248.24

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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.