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Finding the Fourth Proportional to 114,888, 158,545.44 and 64,587.36

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Solution

The fourth proportional to 114,888, 158,545.44 and 64,587.36 is: 89,130.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,888 : 158,545.44 = 64,587.36 : x
  2. Step 2: Convert to fraction form
    114,888/158,545.44 = 64,587.36/x
  3. Step 3: Cross multiply
    114,888x = 158,545.44 × 64,587.36
  4. Step 4: Simplify right side
    114,888x = 10,240,031,409.64
  5. Step 5: Solve for x
    x = 10,240,031,409.64/114,888
  6. Step 6: Final answer
    x = 89,130.56

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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.