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Finding the Fourth Proportional to 133,603.16, 184,283.69 and 85,916.84

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Solution

The fourth proportional to 133,603.16, 184,283.69 and 85,916.84 is: 118,508.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,603.16 : 184,283.69 = 85,916.84 : x
  2. Step 2: Convert to fraction form
    133,603.16/184,283.69 = 85,916.84/x
  3. Step 3: Cross multiply
    133,603.16x = 184,283.69 × 85,916.84
  4. Step 4: Simplify right side
    133,603.16x = 15,833,070,957.34
  5. Step 5: Solve for x
    x = 15,833,070,957.34/133,603.16
  6. Step 6: Final answer
    x = 118,508.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.