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Finding the Fourth Proportional to 88,260, 121,798.80 and 48,516

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Solution

The fourth proportional to 88,260, 121,798.80 and 48,516 is: 66,952.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,260 : 121,798.80 = 48,516 : x
  2. Step 2: Convert to fraction form
    88,260/121,798.80 = 48,516/x
  3. Step 3: Cross multiply
    88,260x = 121,798.80 × 48,516
  4. Step 4: Simplify right side
    88,260x = 5,909,190,580.80
  5. Step 5: Solve for x
    x = 5,909,190,580.80/88,260
  6. Step 6: Final answer
    x = 66,952.08

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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.