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Finding the Fourth Proportional to 188,545.94, 260,156.08 and 105,762.58

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Solution

The fourth proportional to 188,545.94, 260,156.08 and 105,762.58 is: 145,931.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,545.94 : 260,156.08 = 105,762.58 : x
  2. Step 2: Convert to fraction form
    188,545.94/260,156.08 = 105,762.58/x
  3. Step 3: Cross multiply
    188,545.94x = 260,156.08 × 105,762.58
  4. Step 4: Simplify right side
    188,545.94x = 27,514,778,223.49
  5. Step 5: Solve for x
    x = 27,514,778,223.49/188,545.94
  6. Step 6: Final answer
    x = 145,931.43

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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.