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Finding the Fourth Proportional to 93,875.37, 139,975.65 and 83,443.38

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Solution

The fourth proportional to 93,875.37, 139,975.65 and 83,443.38 is: 124,420.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,875.37 : 139,975.65 = 83,443.38 : x
  2. Step 2: Convert to fraction form
    93,875.37/139,975.65 = 83,443.38/x
  3. Step 3: Cross multiply
    93,875.37x = 139,975.65 × 83,443.38
  4. Step 4: Simplify right side
    93,875.37x = 11,680,041,353.70
  5. Step 5: Solve for x
    x = 11,680,041,353.70/93,875.37
  6. Step 6: Final answer
    x = 124,420.72

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.