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Finding the Fourth Proportional to 201,681.70, 301,866.45 and 157,066.90

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Solution

The fourth proportional to 201,681.70, 301,866.45 and 157,066.90 is: 235,089.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,681.70 : 301,866.45 = 157,066.90 : x
  2. Step 2: Convert to fraction form
    201,681.70/301,866.45 = 157,066.90/x
  3. Step 3: Cross multiply
    201,681.70x = 301,866.45 × 157,066.90
  4. Step 4: Simplify right side
    201,681.70x = 47,413,227,515.51
  5. Step 5: Solve for x
    x = 47,413,227,515.51/201,681.70
  6. Step 6: Final answer
    x = 235,089.39

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1.5x scale

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.