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Finding the Fourth Proportional to 88,312.80, 121,828.80 and 52,477.44

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Solution

The fourth proportional to 88,312.80, 121,828.80 and 52,477.44 is: 72,393.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,312.80 : 121,828.80 = 52,477.44 : x
  2. Step 2: Convert to fraction form
    88,312.80/121,828.80 = 52,477.44/x
  3. Step 3: Cross multiply
    88,312.80x = 121,828.80 × 52,477.44
  4. Step 4: Simplify right side
    88,312.80x = 6,393,263,542.27
  5. Step 5: Solve for x
    x = 6,393,263,542.27/88,312.80
  6. Step 6: Final answer
    x = 72,393.40

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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.