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Finding the Fourth Proportional to 93,145.34, 139,703.84 and 33,981.12

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Solution

The fourth proportional to 93,145.34, 139,703.84 and 33,981.12 is: 50,966.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,145.34 : 139,703.84 = 33,981.12 : x
  2. Step 2: Convert to fraction form
    93,145.34/139,703.84 = 33,981.12/x
  3. Step 3: Cross multiply
    93,145.34x = 139,703.84 × 33,981.12
  4. Step 4: Simplify right side
    93,145.34x = 4,747,292,909.02
  5. Step 5: Solve for x
    x = 4,747,292,909.02/93,145.34
  6. Step 6: Final answer
    x = 50,966.51

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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.