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Finding the Fourth Proportional to 98,706.99, 148,038.62 and 39,526.77

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Solution

The fourth proportional to 98,706.99, 148,038.62 and 39,526.77 is: 59,281.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,706.99 : 148,038.62 = 39,526.77 : x
  2. Step 2: Convert to fraction form
    98,706.99/148,038.62 = 39,526.77/x
  3. Step 3: Cross multiply
    98,706.99x = 148,038.62 × 39,526.77
  4. Step 4: Simplify right side
    98,706.99x = 5,851,488,286.22
  5. Step 5: Solve for x
    x = 5,851,488,286.22/98,706.99
  6. Step 6: Final answer
    x = 59,281.40

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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.