Finding the Fourth Proportional to 106,573,073.28, 147,074,407.36 and 65,311,997.44
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Solution
The fourth proportional to 106,573,073.28, 147,074,407.36 and 65,311,997.44 is: 90,132,741.99
Step by Step Solution
- Step 1: Write the proportion equation
106,573,073.28 : 147,074,407.36 = 65,311,997.44 : x - Step 2: Convert to fraction form
106,573,073.28/147,074,407.36 = 65,311,997.44/x - Step 3: Cross multiply
106,573,073.28x = 147,074,407.36 × 65,311,997.44 - Step 4: Simplify right side
106,573,073.28x = 9,605,723,316,985,838 - Step 5: Solve for x
x = 9,605,723,316,985,838/106,573,073.28 - Step 6: Final answer
x = 90,132,741.99
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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.