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Finding the Fourth Proportional to 202,228.50, 279,075.33 and 112,804.50

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Solution

The fourth proportional to 202,228.50, 279,075.33 and 112,804.50 is: 155,670.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,228.50 : 279,075.33 = 112,804.50 : x
  2. Step 2: Convert to fraction form
    202,228.50/279,075.33 = 112,804.50/x
  3. Step 3: Cross multiply
    202,228.50x = 279,075.33 × 112,804.50
  4. Step 4: Simplify right side
    202,228.50x = 31,480,953,062.99
  5. Step 5: Solve for x
    x = 31,480,953,062.99/202,228.50
  6. Step 6: Final answer
    x = 155,670.21

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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.