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Finding the Fourth Proportional to 93,130.45, 139,616.70 and 33,931.60

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Solution

The fourth proportional to 93,130.45, 139,616.70 and 33,931.60 is: 50,868.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,130.45 : 139,616.70 = 33,931.60 : x
  2. Step 2: Convert to fraction form
    93,130.45/139,616.70 = 33,931.60/x
  3. Step 3: Cross multiply
    93,130.45x = 139,616.70 × 33,931.60
  4. Step 4: Simplify right side
    93,130.45x = 4,737,418,017.72
  5. Step 5: Solve for x
    x = 4,737,418,017.72/93,130.45
  6. Step 6: Final answer
    x = 50,868.63

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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.