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Finding the Fourth Proportional to 93,313.70, 139,970.55 and 55,988.90

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Solution

The fourth proportional to 93,313.70, 139,970.55 and 55,988.90 is: 83,983.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,313.70 : 139,970.55 = 55,988.90 : x
  2. Step 2: Convert to fraction form
    93,313.70/139,970.55 = 55,988.90/x
  3. Step 3: Cross multiply
    93,313.70x = 139,970.55 × 55,988.90
  4. Step 4: Simplify right side
    93,313.70x = 7,836,797,126.90
  5. Step 5: Solve for x
    x = 7,836,797,126.90/93,313.70
  6. Step 6: Final answer
    x = 83,983.35

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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.