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Finding the Fourth Proportional to 210,948.92, 291,108.47 and 114,152.70

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Solution

The fourth proportional to 210,948.92, 291,108.47 and 114,152.70 is: 157,530.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,948.92 : 291,108.47 = 114,152.70 : x
  2. Step 2: Convert to fraction form
    210,948.92/291,108.47 = 114,152.70/x
  3. Step 3: Cross multiply
    210,948.92x = 291,108.47 × 114,152.70
  4. Step 4: Simplify right side
    210,948.92x = 33,230,818,364.26
  5. Step 5: Solve for x
    x = 33,230,818,364.26/210,948.92
  6. Step 6: Final answer
    x = 157,530.17

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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.