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Finding the Fourth Proportional to 125,031.51, 187,483.44 and 40,737.45

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Solution

The fourth proportional to 125,031.51, 187,483.44 and 40,737.45 is: 61,085.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,031.51 : 187,483.44 = 40,737.45 : x
  2. Step 2: Convert to fraction form
    125,031.51/187,483.44 = 40,737.45/x
  3. Step 3: Cross multiply
    125,031.51x = 187,483.44 × 40,737.45
  4. Step 4: Simplify right side
    125,031.51x = 7,637,597,262.83
  5. Step 5: Solve for x
    x = 7,637,597,262.83/125,031.51
  6. Step 6: Final answer
    x = 61,085.38

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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.