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Finding the Fourth Proportional to 153,806.54, 212,238.32 and 93,410.28

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Solution

The fourth proportional to 153,806.54, 212,238.32 and 93,410.28 is: 128,897.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,806.54 : 212,238.32 = 93,410.28 : x
  2. Step 2: Convert to fraction form
    153,806.54/212,238.32 = 93,410.28/x
  3. Step 3: Cross multiply
    153,806.54x = 212,238.32 × 93,410.28
  4. Step 4: Simplify right side
    153,806.54x = 19,825,240,430.88
  5. Step 5: Solve for x
    x = 19,825,240,430.88/153,806.54
  6. Step 6: Final answer
    x = 128,897.26

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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.