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Finding the Fourth Proportional to 78,840.80, 108,802.84 and 44,848.40

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Solution

The fourth proportional to 78,840.80, 108,802.84 and 44,848.40 is: 61,892.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,840.80 : 108,802.84 = 44,848.40 : x
  2. Step 2: Convert to fraction form
    78,840.80/108,802.84 = 44,848.40/x
  3. Step 3: Cross multiply
    78,840.80x = 108,802.84 × 44,848.40
  4. Step 4: Simplify right side
    78,840.80x = 4,879,633,289.46
  5. Step 5: Solve for x
    x = 4,879,633,289.46/78,840.80
  6. Step 6: Final answer
    x = 61,892.23

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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.