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Finding the Fourth Proportional to 93,782.34, 129,482.28 and 55,554.26

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Solution

The fourth proportional to 93,782.34, 129,482.28 and 55,554.26 is: 76,701.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,782.34 : 129,482.28 = 55,554.26 : x
  2. Step 2: Convert to fraction form
    93,782.34/129,482.28 = 55,554.26/x
  3. Step 3: Cross multiply
    93,782.34x = 129,482.28 × 55,554.26
  4. Step 4: Simplify right side
    93,782.34x = 7,193,291,601.10
  5. Step 5: Solve for x
    x = 7,193,291,601.10/93,782.34
  6. Step 6: Final answer
    x = 76,701.98

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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.