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Finding the Fourth Proportional to 113,607.60, 170,411.40 and 47,038.56

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Solution

The fourth proportional to 113,607.60, 170,411.40 and 47,038.56 is: 70,557.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,607.60 : 170,411.40 = 47,038.56 : x
  2. Step 2: Convert to fraction form
    113,607.60/170,411.40 = 47,038.56/x
  3. Step 3: Cross multiply
    113,607.60x = 170,411.40 × 47,038.56
  4. Step 4: Simplify right side
    113,607.60x = 8,015,906,863.58
  5. Step 5: Solve for x
    x = 8,015,906,863.58/113,607.60
  6. Step 6: Final answer
    x = 70,557.84

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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.