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Finding the Fourth Proportional to 103,312.44, 142,544.88 and 63,023.58

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Solution

The fourth proportional to 103,312.44, 142,544.88 and 63,023.58 is: 86,956.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,312.44 : 142,544.88 = 63,023.58 : x
  2. Step 2: Convert to fraction form
    103,312.44/142,544.88 = 63,023.58/x
  3. Step 3: Cross multiply
    103,312.44x = 142,544.88 × 63,023.58
  4. Step 4: Simplify right side
    103,312.44x = 8,983,688,648.27
  5. Step 5: Solve for x
    x = 8,983,688,648.27/103,312.44
  6. Step 6: Final answer
    x = 86,956.50

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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.