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Finding the Fourth Proportional to 166,438.64, 249,668.47 and 70,357.94

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Solution

The fourth proportional to 166,438.64, 249,668.47 and 70,357.94 is: 105,541.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,438.64 : 249,668.47 = 70,357.94 : x
  2. Step 2: Convert to fraction form
    166,438.64/249,668.47 = 70,357.94/x
  3. Step 3: Cross multiply
    166,438.64x = 249,668.47 × 70,357.94
  4. Step 4: Simplify right side
    166,438.64x = 17,566,159,232.15
  5. Step 5: Solve for x
    x = 17,566,159,232.15/166,438.64
  6. Step 6: Final answer
    x = 105,541.35

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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.