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Finding the Fourth Proportional to 186,307.56, 257,096.70 and 101,424.69

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Solution

The fourth proportional to 186,307.56, 257,096.70 and 101,424.69 is: 139,961.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,307.56 : 257,096.70 = 101,424.69 : x
  2. Step 2: Convert to fraction form
    186,307.56/257,096.70 = 101,424.69/x
  3. Step 3: Cross multiply
    186,307.56x = 257,096.70 × 101,424.69
  4. Step 4: Simplify right side
    186,307.56x = 26,075,953,097.52
  5. Step 5: Solve for x
    x = 26,075,953,097.52/186,307.56
  6. Step 6: Final answer
    x = 139,961.86

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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.