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Finding the Fourth Proportional to 92,953.70, 139,430.55 and 30,616.10

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Solution

The fourth proportional to 92,953.70, 139,430.55 and 30,616.10 is: 45,924.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,953.70 : 139,430.55 = 30,616.10 : x
  2. Step 2: Convert to fraction form
    92,953.70/139,430.55 = 30,616.10/x
  3. Step 3: Cross multiply
    92,953.70x = 139,430.55 × 30,616.10
  4. Step 4: Simplify right side
    92,953.70x = 4,268,819,661.86
  5. Step 5: Solve for x
    x = 4,268,819,661.86/92,953.70
  6. Step 6: Final answer
    x = 45,924.15

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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.