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Finding the Fourth Proportional to 357,036.99, 535,557.33 and 120,381.72

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Solution

The fourth proportional to 357,036.99, 535,557.33 and 120,381.72 is: 180,573.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    357,036.99 : 535,557.33 = 120,381.72 : x
  2. Step 2: Convert to fraction form
    357,036.99/535,557.33 = 120,381.72/x
  3. Step 3: Cross multiply
    357,036.99x = 535,557.33 × 120,381.72
  4. Step 4: Simplify right side
    357,036.99x = 64,471,312,544.01
  5. Step 5: Solve for x
    x = 64,471,312,544.01/357,036.99
  6. Step 6: Final answer
    x = 180,573.20

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1.5x scale

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.