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Finding the Fourth Proportional to 245,510.94, 338,851.68 and 153,672.84

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Solution

The fourth proportional to 245,510.94, 338,851.68 and 153,672.84 is: 212,097.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,510.94 : 338,851.68 = 153,672.84 : x
  2. Step 2: Convert to fraction form
    245,510.94/338,851.68 = 153,672.84/x
  3. Step 3: Cross multiply
    245,510.94x = 338,851.68 × 153,672.84
  4. Step 4: Simplify right side
    245,510.94x = 52,072,300,004.37
  5. Step 5: Solve for x
    x = 52,072,300,004.37/245,510.94
  6. Step 6: Final answer
    x = 212,097.68

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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.