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Finding the Fourth Proportional to 125,297.95, 172,900.47 and 70,847.45

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Solution

The fourth proportional to 125,297.95, 172,900.47 and 70,847.45 is: 97,763.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,297.95 : 172,900.47 = 70,847.45 : x
  2. Step 2: Convert to fraction form
    125,297.95/172,900.47 = 70,847.45/x
  3. Step 3: Cross multiply
    125,297.95x = 172,900.47 × 70,847.45
  4. Step 4: Simplify right side
    125,297.95x = 12,249,556,184.56
  5. Step 5: Solve for x
    x = 12,249,556,184.56/125,297.95
  6. Step 6: Final answer
    x = 97,763.42

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1.5x scale

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.