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Finding the Fourth Proportional to 133,417.15, 184,108.80 and 72,976.03

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Solution

The fourth proportional to 133,417.15, 184,108.80 and 72,976.03 is: 100,703.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,417.15 : 184,108.80 = 72,976.03 : x
  2. Step 2: Convert to fraction form
    133,417.15/184,108.80 = 72,976.03/x
  3. Step 3: Cross multiply
    133,417.15x = 184,108.80 × 72,976.03
  4. Step 4: Simplify right side
    133,417.15x = 13,435,529,312.06
  5. Step 5: Solve for x
    x = 13,435,529,312.06/133,417.15
  6. Step 6: Final answer
    x = 100,703.17

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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.