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Finding the Fourth Proportional to 210,588.59, 290,611.56 and 115,095.26

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Solution

The fourth proportional to 210,588.59, 290,611.56 and 115,095.26 is: 158,831.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,588.59 : 290,611.56 = 115,095.26 : x
  2. Step 2: Convert to fraction form
    210,588.59/290,611.56 = 115,095.26/x
  3. Step 3: Cross multiply
    210,588.59x = 290,611.56 × 115,095.26
  4. Step 4: Simplify right side
    210,588.59x = 33,448,013,057.21
  5. Step 5: Solve for x
    x = 33,448,013,057.21/210,588.59
  6. Step 6: Final answer
    x = 158,831.08

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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.