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Finding the Fourth Proportional to 93,117.30, 139,675.95 and 36,970.80

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Solution

The fourth proportional to 93,117.30, 139,675.95 and 36,970.80 is: 55,456.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,117.30 : 139,675.95 = 36,970.80 : x
  2. Step 2: Convert to fraction form
    93,117.30/139,675.95 = 36,970.80/x
  3. Step 3: Cross multiply
    93,117.30x = 139,675.95 × 36,970.80
  4. Step 4: Simplify right side
    93,117.30x = 5,163,931,612.26
  5. Step 5: Solve for x
    x = 5,163,931,612.26/93,117.30
  6. Step 6: Final answer
    x = 55,456.20

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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.