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Finding the Fourth Proportional to 166,185, 249,069.53 and 71,303.22

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Solution

The fourth proportional to 166,185, 249,069.53 and 71,303.22 is: 106,865.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,185 : 249,069.53 = 71,303.22 : x
  2. Step 2: Convert to fraction form
    166,185/249,069.53 = 71,303.22/x
  3. Step 3: Cross multiply
    166,185x = 249,069.53 × 71,303.22
  4. Step 4: Simplify right side
    166,185x = 17,759,459,671.14
  5. Step 5: Solve for x
    x = 17,759,459,671.14/166,185
  6. Step 6: Final answer
    x = 106,865.60

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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.