Home / 352,021.10-528,031.65-127,381.10

Finding the Fourth Proportional to 352,021.10, 528,031.65 and 127,381.10

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Solution

The fourth proportional to 352,021.10, 528,031.65 and 127,381.10 is: 191,071.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,021.10 : 528,031.65 = 127,381.10 : x
  2. Step 2: Convert to fraction form
    352,021.10/528,031.65 = 127,381.10/x
  3. Step 3: Cross multiply
    352,021.10x = 528,031.65 × 127,381.10
  4. Step 4: Simplify right side
    352,021.10x = 67,261,252,411.82
  5. Step 5: Solve for x
    x = 67,261,252,411.82/352,021.10
  6. Step 6: Final answer
    x = 191,071.65

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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.