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Finding the Fourth Proportional to 356,875.34, 535,453.11 and 157,055.56

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Solution

The fourth proportional to 356,875.34, 535,453.11 and 157,055.56 is: 235,645.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,875.34 : 535,453.11 = 157,055.56 : x
  2. Step 2: Convert to fraction form
    356,875.34/535,453.11 = 157,055.56/x
  3. Step 3: Cross multiply
    356,875.34x = 535,453.11 × 157,055.56
  4. Step 4: Simplify right side
    356,875.34x = 84,095,886,706.16
  5. Step 5: Solve for x
    x = 84,095,886,706.16/356,875.34
  6. Step 6: Final answer
    x = 235,645.00

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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.