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Finding the Fourth Proportional to 93,247,999.80, 139,871,999.70 and 91,456,409.40

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Solution

The fourth proportional to 93,247,999.80, 139,871,999.70 and 91,456,409.40 is: 137,184,614.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,247,999.80 : 139,871,999.70 = 91,456,409.40 : x
  2. Step 2: Convert to fraction form
    93,247,999.80/139,871,999.70 = 91,456,409.40/x
  3. Step 3: Cross multiply
    93,247,999.80x = 139,871,999.70 × 91,456,409.40
  4. Step 4: Simplify right side
    93,247,999.80x = 12,792,190,868,159,876
  5. Step 5: Solve for x
    x = 12,792,190,868,159,876/93,247,999.80
  6. Step 6: Final answer
    x = 137,184,614.10

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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.